Manifest Destiny

As the United States expanded in the 1800s, many Americans were inspired by an idea known as Manifest Destiny. They believed that the United States had a duty to stretch westward to the Pacific Ocean and even beyond. In doing so the nation would spread Protestant and democratic ideals across the North American continent.

The phrase “Manifest Destiny” was introduced by journalist John L. O’Sullivan in an 1845 newspaper article. In that year the United States admitted Texas to the Union as the 28th state. Writing about the event, O’Sullivan spoke of America’s “manifest destiny to overspread the continent allotted by Providence for the free development of our yearly multiplying millions.” The idea of Manifest Destiny was later used to justify the addition of Oregon, New Mexico, California, Alaska, and Hawaii to the United States.

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